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car engine muffler

A technology for automobile engines and mufflers, which is applied in the direction of engine components, machines/engines, and mufflers. It can solve problems such as poor muffler stability and easy corrosion of the shell, so as to prolong service life, reduce hidden dangers of corrosion, and eliminate The effect of absorbing moisture

Active Publication Date: 2017-06-20
LIUZHOU HENGZHUO AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is to provide an automobile engine muffler to solve the problems that the existing automobile engine muffler is equipped with a high-frequency tube unit, resulting in poor muffler stability and easy corrosion of the shell

Method used

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  • car engine muffler
  • car engine muffler
  • car engine muffler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Such as figure 1 The automobile engine muffler shown includes a housing equipped with an air intake pipe 1 and an air outlet pipe 4. The housing is formed by welding an upper half shell 5 and a lower half shell 6. Both the upper half shell 5 and the lower half shell 6 have a layer of 1.2 mm. The thickness of the steel plate is stamped by the mold; the inner space of the shell is divided into the first chamber, the second chamber and the third chamber by the first partition plate 2 and the second partition plate 3 with holes along the air intake direction, The first spacer 2 and the second spacer 3 are all welded on the lower half-shell 6; the intake end of the air intake pipe 1 is arranged outside the housing, and the air intake pipe 1 passes through the first spacer 2 and the second spacer 3 in sequence. In the third chamber, the air inlet pipe 1 has a plurality of through holes on the wall of the second chamber; the inner port of the air outlet pipe 4 is arranged in t...

Embodiment 2

[0018] The number of through holes of the first partition 2 is 1.4 times of the number of through holes of the second partition 3. The sum of the equivalent areas of the holes is 1.6 times of the flow area of ​​the intake pipe 1; other features are the same as in Embodiment 1.

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Abstract

The invention discloses an automobile engine muffler, which relates to the technical field of automobile manufacturing, and comprises a casing provided with an air inlet pipe and an air outlet pipe. The partition plate is divided into a first chamber, a second chamber and a third chamber, and the air inlet pipe passes through the first partition plate and the second partition plate in turn and extends into the third chamber, and the The air inlet pipe is distributed with a plurality of through holes on the pipe wall of the second chamber; the inner port of the air outlet pipe is arranged in the first chamber, and the air outlet pipe passes through the second chamber in sequence along the air outlet direction. chamber and the third chamber; the number of through holes on the first partition is greater than the number of through holes on the second partition, and a drainage hole is provided at the bottom of the first chamber. Compared with the prior art, the invention can solve the problems that the existing automobile engine muffler is equipped with a high-frequency tube unit, which leads to poor muffler stability and easy corrosion of the casing.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a muffler for a large-displacement engine of an automobile. Background technique [0002] At present, the mufflers used for large-displacement engines of automobiles generally include a housing provided with an air inlet pipe and an air outlet pipe, and the space in the housing is divided into a first chamber, a first chamber, and a In the second chamber and the third chamber, the inlet pipe or the air outlet pipe is provided with a plurality of through holes on the pipe wall of one of the pipe sections and a sleeve is provided outside the pipe section, and the sleeve pipe and the pipe with multiple The pipe section with several through holes is filled with sound-absorbing cotton; this kind of high-frequency pipe unit with a sleeve outside the pipe section with multiple through-holes and filled with sound-absorbing cotton between the two is usually used to absorb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N1/10F01N13/00
Inventor 郑忠夏闫洁蒋跃军沈卫兵李武
Owner LIUZHOU HENGZHUO AUTO PARTS